Not that I know too much about these fancy fangled carp type tactics but.....
A few times this year, I've had the carp coming quite nicely to small open ended feeder tactics (with pellets and fishmeal g/bait)and then switched to bags. In winter, very small PVA bags with pellets were very successful (approx a dozen pellets), so I've tried bigger bags with pellet/gbait and they've definately scored at a higher rate than the feeder. Now, not to get too technical, but I reckon the rate of decent for the bags is slower than the feeder and I've had far more carp "on the drop" than before! I'm sure that's not how the bags are supposed to work but when the carp are "'avin it", it works very well.
Today, I fished a match and had pre-decided to mess about and see what happens. I finished 2nd with 48lb! At one stage I used a tiny PVA bag filled with pellet and 5 11ml pellets (yes FIVE) on a hair which produced a carp of 7lb first chuck out! (didn't work again though!)